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How Bright Light Affects Jet Lag

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Katie Couric and Sarah Spagnolo from Travel+Leisure discuss the major jet influences addressed by StopJetLag

Courtesy of Katie - katie's Travel Toolkit

"StopJetLag.com will actually create a custom plan just for you.


They'll take into account your exact itinerary and recommend things like

  • when you should be waking up,
  • when you should be going to sleep,
  • what you should be eating, drinking,
  • when you should be opening your windows,
  • when you should be exposing yourself to sunlight,
  • when you should eat."

"All of these things really do make a difference. So this is a big issue and something that StopJetLag is a great resource for."

Sarah Spagnolo from Travel+Leisure

Bright light and jet lag Avoid bright light and jet lag  Prevent Jet Lag with Correct Lighting Levels

Both Exposure To and
Avoiding Bright Light
Assists in Preventing
Jet Lag

Recent research (1)(2) has emphasized the strong effect bright light can have on resetting your body clock to prevent jet lag when it is coordinated with your regular sleep patterns.

Your StopJetLag instructions take advantage of lighting influences, making them part of its comprehensive approach to your beating jet lag. Your Plan notes appropriate periods for you to seek out 'Bright Light' (outdoor or indoor) as well as times for you to 'Avoid Bright Light'. Bright light is considered to be as close to outdoor daylight as possible; the brighter the better. If it is necessary for you to be outside during the 'Avoid Bright Light' periods, wear sunglasses.

It is best for you to follow the Bright Light exposure patterns for 2 days upon your arrival at your destination.


(1) Eastman CI, Burgess HJ. How to travel the world without jet lag. Sleep Med Clin 2009;4:241–55.

(2) Czeisler, C. A., R. E. Kronauer, J. S. Allan, J. F. Duffy, M. E. Jewett, E. N. Brown, and J. M. Ronda. Bright light induction of strong (type 0) resetting of the human circadian pacemaker. Science 244:1328–1333, 1989.

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